80 Linux Mail Host Or Domain Name Not Found In This Year

Or do you use one of the email clients that comes with hosting.

Linux mail host or domain name not found. Would you be able to send a screen shot of your dns settings. A both linux unix comes with the following utilities to display hostname domain name. It looks to me like there s a dns problem at my client s email host but i need confirmation please or tell me i m wrong.

A hostname show or set the system s host name b domainname show or set the system s nis yp domain name c dnsdomainname show the system s dns domain name d nisdomainname show or set system s nis yp domain name e ypdomainname show or set the system s nis yp domain name. No servers could be reached so i change my dns server to 8 8 8 8 using nmtui command and reboot my server. Relay none delay 0 01 delays 0 01 0 0 0 dsn 4 3 5 status deferred host or domain name not found.

You can use hostname hostnamectl command to show or set the system s host name and dnsdomainname command to show the system s dns domain name. But the changes are temporary if you use these commands. The bounce message says.

I had a problem sending an email to a local address.